KUZMICHEV, V. E.; KUZMICHEV, V. V. Behavior of the Gravitational System Close to The Planck Epoch. Ukrainian Journal of Physics, [S. l.], v. 62, n. 6, p. 545, 2018. DOI: 10.15407/ujpe62.06.0545. Disponível em: https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2018674. Acesso em: 17 may. 2022.